Blackberry Cake with Blackberry Buttercream

Blackberry Cake with Blackberry Buttercream

A luscious, fruity, bakery-style cake filled with bright berry flavor

Introduction

If you love fruity desserts that strike the perfect balance between sweetness and tang, this Blackberry Cake will steal your heart from the very first bite. The combination of fresh lime zest, velvety buttercream, and swirls of real blackberry purée creates a cake that feels both elegant and homey — like something you’d proudly serve at a celebration, but simple enough to bake on a cozy weekend afternoon. Every layer is moist, tender, and bursting with berry flavor, making it a showstopper that looks every bit as stunning as it tastes.

Ingredients

For the Blackberry Cake

• 8 oz (227 g) buttermilk
• 3 oz (85 g) vegetable oil
• 3 large eggs
• 1 Tbsp lime zest (about 1 lime)
• 1 Tbsp lime juice
• 12 oz (340 g) all-purpose flour
• 11 oz (312 g) granulated sugar
• 1 tsp salt
• 1 tsp baking soda
• 8 oz (227 g) unsalted butter, softened
• 2 Tbsp all-purpose flour (for dusting berries)
• 4 oz (113 g) fresh or frozen blackberries

For the Blackberry Purée

• 16 oz (453 g) blackberries
• 1 Tbsp lime zest
• 2 Tbsp lime juice
• 1 Tbsp cornstarch
• 1/8 tsp salt

For the Blackberry Buttercream

• 24 oz (680 g) unsalted butter, room temperature
• 24 oz (680 g) powdered sugar
• 2 tsp vanilla extract
• 6 oz (170 g) pasteurized egg whites, room temperature
• 2 oz (57 g) blackberry purée (more if desired)
• 1 drop pink food coloring (optional)

Directions